I don't see the update button. However I am not sure if it updated automatically, as I can't reproduce the rewind bug anymore. (the last update date in the google game store didn't adjust)

How can I be sure I use the current version? Has there been "Alpha 10 RC" instead of "Alpha 10" in the game header above the menu? I wanted to open the console (expecting there might be a detailed version number) but it didn't pop up. Report a bug does nothing too. Didn't check "reset AIs".